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CFTR Intron 8 Poly-T Analysis

Test Code


CPT Code(s)

For New York patient testing, use test code 14700X

Preferred Specimen(s)

5 mL whole blood collected in an EDTA (lavender-top) tube

Minimum Volume

3 mL

Alternative Specimen(s)

Whole blood collected in: ACD solution A or B (yellow-top), EDTA (royal blue-top) or sodium heparin (green-top) tube

Collection Instructions

Normal phlebotomy procedure. Specimen stability is crucial. Store and ship room temperature immediately. Do not freeze.

Transport Temperature

Room temperature

Specimen Stability

Room temperature: 8 days
Refrigerated: 8 days
Frozen: Unacceptable

Reject Criteria

Received frozen


Oligonucleotide Ligation Assay • Polymerase Chain Reaction (PCR)

The performance characteristics of this assay have been determined by Quest Diagnostics. Performance characteristics refer to the analytical performance of the test.

This test is performed pursuant to a license agreement with Celera Diagnostics.

Performing Laboratory

Quest Diagnostics Nichols Institute
33608 Ortega Highway
San Juan Capistrano, CA 92690-6130

Setup Schedule

Set up: Tues, Fri; Report Available: 7-11 days

Reference Range(s)

See Laboratory Report

LOINC®' Code(s)

The Result and LOINC information listed below should not be used for electronic interface maintenance with Quest Diagnostics. Please contact the Quest Diagnostics Connectivity Help Desk for more information at 800-697-9302.

NOTE: The codes listed in the table below are not orderable Test Codes.

Result NameLOINC CodeComponent Name
813CF, Intron 8 Poly-T43370-6CFTR gene.p.IVS8 polyT

Reference ranges are provided as general guidance only. To interpret test results use the reference range in the laboratory report.

The CPT codes provided are based on AMA guidelines and are for informational purposes only. CPT coding is the sole responsibility of the billing party. Please direct any questions regarding coding to the payer being billed.

LOINC assignment is based on a combination of test attributes, including the method used by the performing laboratory. For tests not performed by Quest Diagnostics, codes are assigned by the performing laboratory.

* The tests listed by specialist are a select group of tests offered. For a complete list of Quest Diagnostics tests, please refer to our Directory of Services.